JBL oem system to aftermarket questions

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

38SHO

#1 Oil Abuser
Joined
Jan 16, 2005
Messages
2,763
Reaction score
288
Location
North Palm Beach
I just picked up a 94 SHO with the JBL system and subwoofer....

my old car was a 91 SLO, I had an aftermarket headunit powering aftermarket door speakers in the front through the factory wiring harness and wires... then my subs were run off RCA's from the headunit to my amp.

Now I thought I had two big connectors on my SLO, the SHO wiring looks vastly different.... one connector looks familar while the other one is totally different. Does that wierd connector go for the speakers throughout the car?

What does that one connector that is I believe plastic, and has about 7 wires or so on terminals stacked 1 high and 7 or so wide.....

I noticed the antenna wire, and also another wire with one wire I believe... that could be the dimmer control maybe or a remote wire for the factory amp?

Plan of action is to put in my old headunit, one connector looks like it will work. how would I connect to the factory speakers as I assume they are that other connector. I'm running a fosgate amp on 2 Cerwin Vega 15's. I can always run that straight on the RCA wires so thats not a problem. Would I need to get another amp and run RCA's to that and then run new speaker wires from the amp to the door speakers? Basically throwing out the entire factory sound system...... with the exception of that 1 connector for the radio harness in the dash....

It looks like there are a lot of people around with aftermarket speakers so I'm sure someone has gone through this before and can help me out

thanks
 

Wht91+

93 Green MTX
Joined
Jan 12, 2006
Messages
841
Reaction score
4
Location
Oconomowoc,WI
pioneer makes a pretty 3-way rear speaker. and if you want to keep it all the same they make the same for the front. otherwise sony Xploid has a great front speaker.

My opinion.
 

monkeyssho

New Member
Joined
Jul 13, 2004
Messages
38
Reaction score
0
Location
Pennsylvania
Why not just use the factory wiring in the trunk for the amp and save the headache. You can buy a bypass for the factory amp that plugs into both plugs on the jbl amp to run the speakers. You can also get the connector for the jbl system and also save the headache. I have been doing professional car audio installs andam also MECP certified to do so. I have learned most of the tricks and differnt ways to do these things. My 93 had the jbl and i just left it alone for a while and just changed the radio with no problems. The speakers that i would recomend would be the new infinitys as they have amazed me with the full range of sound that they put out. And that weird connector with the gray casing is for the speakers. also i would not just throw away the factory system leave the wiring alone other than bypassing the amp in the trunk. I have worked at best buy for 2 years and we sell the harness and the bypass harness for 20 bucks and it is well worth it to save the headache. Ours is made by Metra and the part # is 70-5514 and sells for $19.49. Any other questions you can pm me and i'll do my best.
 

shoteen95

isn't a teen :D
Joined
Jul 20, 2004
Messages
1,563
Reaction score
38
Location
Dearborn Heights, MI
if you want the install to be strictly plug-n-play, you'll need a harness for Ford Premium sound systems (your year included), and another harness that will mate the premium sound harness to whatever brand stereo you have. Or you can just hack the connectors off and wire it yourself. Like what was said above, the squarish grey connector is for the speakers, the other for power, dimmer, ground, antenna signal, and I think an amp-on signal, etc.

If you don't want do mess around in the trunk bypassing the amps, there's another connector tucked up into the dash that runs straight to the speakers (are cars are dual wired, look at a speaker and you'll notice two sets of wires running to it), cut the connector off, and there's your wiring...straight to the speakers. Basically, a poor mans amp bypass.

I personally liked keeping the stock amps operational, as to keep use of the stock subwoofer. Throw in the amp bypass and the stock sub will not work (there might be a way to modify it so it will work, I don't know). After I got my new sub and amp, the stock equipment became useless.

I think putting in a new head unit, speakers, and keeping the stock amp/sub operational will be pretty satisfying. Until you want to go big ofcourse.
 

38SHO

#1 Oil Abuser
Joined
Jan 16, 2005
Messages
2,763
Reaction score
288
Location
North Palm Beach
wow I think you have all just convinced me to throw out everything in the car and run all new wiring lol....im not worried at all about having to do it or the difficulty.. I want a no compromise system... you can't run a marathon while breathing through a straw...

sorry im not really into sony Xplods or such... im aiming for a few levels above that... Im looking for new components in the 400 dollar range or higher... sony xplod or pioneer speakers that u get at best buy etc aren't even considered anywhere close to the level of speakers like what I need. Im hoping my subs will put out high 140's to 150db's so I need a good 200 watts RMS to each door speaker to have a chance of keeping up, to put that in perspective most door speakers u buy at best buy run 20-50 watts RMS or they blow the **** up.

Eventually my subs are going to be run off a Hifonics 1600 watt rms class D amp, right now they are only getting about 400 watts each on the Rockford Fosgate amp. The Subs are two 2006 Cerwin Vega Vmax's... 15.4 dual voice coil
 

Forum statistics

Threads
107,091
Messages
1,181,334
Members
16,156
Latest member
crystizel

Members online

No members online now.
Back
Top