Newbie here. Need up to date advice please, I just spent 3 hours reading a number of long threads hoping to avoid asking questions that have already been answered by others. I'm realizing however that as the years have passed the answers are different now, especially where I wasn't around when Hans' innovative system was available. I have a 1991 928 GT with the stock Blaupunkt Stuttgart head unit that I would I would like to leave intact but disconnect from the speakers in favor of some kind of invisible contraption for the glove box that will play my iPhone music by Bluetooth or cable from my iPhone if possible.
Question: Can someone give me a list of makes and model numbers for: a new a set of door speakers, rear seat b-pillar speakers, amp (that will fit in the stock location by passenger seat) and a powered sub (or amp sub combo) that fits in the rear tire area or stock speaker locations? It seemed like some posts liked the Focal component speakers with crossovers but those model numbers are now obsolete. Same with the mini amp that was recommended. It seems that the speaker "fit" is the biggest issue so recommendations for that from the last year or two would be the most helpful.
I do want to keep everything as stock looking as possible so i don't hurt the value of this 91 GT. BTW, the 91 has the round grills in the rear passenger area, not square ones.
Thanks in advance for the input.

 

Hi,

Here is the link for the Rockford- Fosgate PBR300x4, still in production and available for $175 shipped:

https://www.sonicelectronix.com/lp/p...FcaFswodJ1sNDQ

I have it in my car and it's amazing, despite its tiny size.

Here is the link to the Focal 100 KRS component 2 way speakers. Also have those and their quality approaches reasonably high end home speaker sound in terms of detail. There is very little room in the doors and these work well. I mounted the tweeters using Hans' tweeter cups and grills. Totally stock and no mods to my car that can't be reversed to stock. Expensive but worth it.

https://www.crutchfield.com/p_091100...t&awug=9003745

Connections to head unit are easy because Porsche used separate wires for ground, power, antenna booster - easy to unplug the spades from the stock radio and attach to a new radio's wiring using corresponding spades on the new wiring...non-destructive and easily reversed.

I went vintage Alpine and it sounds amazing. But, I could have gone with the new model (looks too new for my tastes) and saved 75% of the cost. The newer ones have more integrated features. I have added Bluetooth on mine though, so all the modern convenience I need.

As for subs, the compact powered sub from JL Audio fits almost like a glove in the spare tire area. If Hans doesn't build Sharkwoofers any more, this has to be the next best thing. Sounds great, but you need the option remote bass control **** (should have with any powered sub IMO). ACP108LG:

https://www.crutchfield.com/p_136933...t&awug=9003745

There is a non powered version too if you want to use an external amp. Given space constraints in the 928, though, space savings by integrating the amp is a good thing. It's capable of everything from low strings and bass notes all the way to pounding rock. You can cover with all the carpet you want - makes little difference.

 

PS there are Bluetooth kits that use factory radios aux or cd changer (remember those?) functions. My old Alpine has cd changer controls and that is how my Bluetooth is connected. Bluetooth with Tidal on my phone is sublime!

 

I've used Infinity Basslink subs in a couple of my 928's. Currently have a Basslink I. They're compact and sound good. They're also quite self-contained, so, with the current one, I used a modular plug for the power connections that allows me to quickly disconnected it if I need to pull it out for more cargo space.

 

I had a Basslink in my RX-8, and was very happy with it. The only issue in the 928 is you can't hide it in the spare tire well, so it takes up hatch space, but as described above, pretty easy to make it removable.

 

Pretty easy to build an enclosure and install it in the spare tire well.

 

^^^^
You were almost there Randy. Looks like sh_t as is T

 

Way to sugar coat that... haha. I feel like you're holding back your true feelings.

@2002M3Drew; Can you post pictures of your door panels and where you have the sub for reference?

 

Fellow newbie here and just finished a stereo upgrade today.

There is actually a lot of room in the old amp location. I got a Pioneer GM-D1004 mini-amp, wanted more volume, and decided to buy another one - now have a bridged 90 watts x 4 speakers @4 ohms. Together they were $190 and they fit - easily - into the space. They will go fairly clean right up to "Deafening".

A PO added great component front speakers, now NLA. But the back he put a pair of 6 3/4" Kenwood 3 ways, leaving the remaining 4 smaller rear drivers unused. The sound from the 3 way is excellent so I recommend a similar solution - I don't think you give up a lot by making it simple. (You probably already know that you have to cut the OE speaker out of the mount to make it a spacer for the new speaker.)

For bass, I have a Kenwood compact powered sub (KFC-C1739ie, $144) on the floor behind the passenger seat. It fills out the bass very well and it's cheap, tiny, and ultra easy to install. The spare tire solutions are probably much better, but this was cheap enough to try and worked out great.

I feel like the loud interior of these cars makes it hard to justify a super-premium stereo. I realize this is not everyone's approach. But the above sounds fantastic when it's quiet and easily audible on the highway.

 

..no mention of Sharkwoofer?

 

Thanks guys, this is great information and exactly what I wanted.
@2002M3Drew, the links were great. I just ordered some of those parts. I have owned the car for less than a month and just took my first glance at that spare tire area. When I was reading the thread on Hans' SharkWoofer it seemed he was suggesting to do away with that plastic piece that covers the spare tire and maybe even modifying the foam or carpet so the bass comes through. I'm not that excited about doing that. Drew, do you have the plastic spare tire cover in place above the JL Audio powered box? Did you modify the foam or the carpet?
Are there any Hans (Project 9) Sharkwoofer users reading this? What is modified, removed (beyond the spare and compressor) e SharkWoofer?
Chart928S4, I would also be interested of seeing what that Kenwood mini sub box looks like behind the passenger seat. Could you share that?

 

"What is modified, removed "

Spare tire, nothing.

 

Hans was suggesting to remove the plastic cover and he also suggested modifying the foam under the carpet. You have one right? Can you tell us?

 

Here are two pics of the amps and sub with the side cover off. The beauty of this setup is that you install almost everything by crouching over the right side floor - a short cable run using the OE routing across the front of the passenger seat, and using existing speaker and ground cable. Also important to me, there are no permanent mods to anything. Finally, power consumption for these components and therefore wiring difficulty is low. I ran a single 10A-fused 10ga wire to the battery and pulled power for both amps and the sub, and used the existing OE amp ground (thicker brown wire under the cover).

Re: the Sharkwoofer, I don't have one. But there should be no irreversible mods except perhaps the carpet. If I understand it, it replaces the spare tire, compressor, and spare tire cover plate under the carpet. To restore the car to stock, take out the Sharkwoofer and put back the tire, compressor, and cover plate. It no doubt blows away any compact sub and will also be fairly easy to install.

 

Very nice. The pictures help a lot. Thank you.
Btw, your leather and carpeting look great. Its typically hard to keep those lighter colors looking that good for over 25 years.
Did you buy that on BaT? Something tells me I have seen your name in the past bidding on 928's. I'm PlanC on BaT. I may bid on the present 86 Euro for my son.
Thanks for the input the stereo, I will let you know how mine comes out.
Charlie