Greetings,
Acquired a 98 Mustang convertible a bit ago and the stereo was pretty much shot. It had the Mach system.

I replaced the head unit, front and rear speakers and ran speaker wires bypassing the Mach system altogether. The front speakers sound great. The rear has no bass whatsoever. The car is a salvage title so the padding on one side of the interior quarter panel is gone. Other side has it but when its all together even the side that has it sounds terrible. I installed a 400w amp and made them louder but still no bass. Im assuming the padding is there to make it like a speaker box.

Im wonderin if I should make some type of enclosure around the metal speaker brackets or something? Im assuming when I put the panel on its not restricting the air or something.

Im no stereo pro but I know its not the speakers cause I even swapped the front and back and whichever pair is in the front they sound good. Back bad.

Any ideas?

 

wish you had hit me up first before doing all this, didn't need too and might have to fix what you did now. Is all the speakers still stock? If so then bypassing the amps could not have helped anything since you now have a low range woofer playing full range, are the tweeters on as well?

first pull the deck out and locate the remote turn on on the deck hrns.blue or blue/white and connect it to the amp turn on in the cars hrns(blue and white and will say "amp turn on" in small writting on the wire. that should turn on your rear amp if you did not already bypass that. If you did it would be best to hook it back up the way it was and get the stock amps wroking Aftermarket amps on those speakers are a waste because they use an 8 ohm woofer so if you bought a 100 watt amp to drive then you are probably getting less then half that power since aftermarket amps are made to drive 4 ohm speakers.

It would be helpfull if you can get pics of everything you have now.

 

I pulled the factory and replaced with basic Pioneer 300W 3 ways. Just wanted something half decent to listen to. Replaced head unit as well. I don't think the old amps are even there anymore. From what I understand on the convertible they were next to the motor that run the convertible top. Whoever restored this thing didnt pay attention to the audio system at all. I think the Mach was half gutted already. Its like the tweeter is on the right door but not the left. No sub or Amps. I think there was right side damage before the resto so I question if it ever was a Mach system or if they just used a door from a car that had one. Its kind of hard to explain but the car is like Frankenstein. Looks good and is solid structurally but had some serious electronics riggin going on that Im cleaning up.