boardmanMJ Posted March 15, 2015 Share Posted March 15, 2015 I've been having some audio problems in my truck. It has Kenwood head unit with 4 stock speakers. for my birthday I got some pioneer 4x6 and 5.25 speakers to install. Since I've owned the truck the door speakers never worked and I have a feeling something went wrong when the PO installed the head unit but I never looked into it yet. Now my questions....the tweeter under dash speakers that came in XJs, do our trucks have the wiring for them or do I have to wire it myself? also to change the rear speakers, do I have to take the whole b pillar panel off or can I just pop the grill off? It seems like the grill will pop off but I don't want to crack it. Link to comment Share on other sites More sharing options...
Minuit Posted March 15, 2015 Share Posted March 15, 2015 I don't think MJs are wired for the Jensen Audio specific dash tweeters, but due to some PO screwery I know that 3-1/2 inch speakers will fit with some minor encouragement. The grill is plastic welded to the panel at least on mine, so you'll have to take the whole thing off to get to the speakers. Link to comment Share on other sites More sharing options...
johnj92131 Posted March 15, 2015 Share Posted March 15, 2015 I have been looking for the answer to the under dash tweeter issue for the last month or more. After lots of searching, here is what I have come up with: 1) Base model trucks do not have the factory installed wiring for the under dash tweeters or for the rear speakers. 2) the factory XJ's with the under dash tweeters have the plug for the tweeters spliced in to the speaker wires. That splice seems to have been done at the factory. I looked at 3 or 4 different XJs in recent junk yard expeditions and cut out a section of the speaker wires from one XJ to take home with me. So I have an example of the factory splice from both the left side and the right side. Both sides are identical. 3) As for the rear speakers. I have not found a junk yard Comanche with rear speakers yet. But my 86/87 parts book indicates there is a plug in harness extension from the kick panel area to the to the rear speakers. I have not seen one nor have I read about one. But it makes sense. 4) I do not know what impedance the factory door speakers were. I kind of "assume" 8 ohms, but I have seen cheap 4 ohm speakers offered for sale. Same for the rear speakers, The ones I have are not marked with impedance. Please share any of your findings. Very glad to see the information about the rear speaker grill being plastic welded in place. Saved me from damaging my grills. Link to comment Share on other sites More sharing options...
boardmanMJ Posted March 15, 2015 Author Share Posted March 15, 2015 I know that both of my pioneers do not have the speaker harness for under the dash but I never checked my eliminator to see if it has it. all 3 of my MJs have 4 speakers in them Link to comment Share on other sites More sharing options...
johnj92131 Posted March 16, 2015 Share Posted March 16, 2015 I know that both of my pioneers do not have the speaker harness for under the dash but I never checked my eliminator to see if it has it. all 3 of my MJs have 4 speakers in them So perhaps you can tell me how the rear speakers are wired in? Is it a factory harness or just a home made harness. Also if factory harness, where is the connection made to the door speakers? And is the connection just striped wire to striped wire, solid to solid? Thanks for the assistance Link to comment Share on other sites More sharing options...
shelbyluvv Posted March 16, 2015 Share Posted March 16, 2015 When my stereo was acting up I pulled new wires from the head unit to all the speakers. I have a Kenwood deck as well. I just spliced into the power and memory wires in the dash to power it. My stereo sounds better now as well. My 86 does not have the rear speakers either so I had to pull wires for it also. I see no reason to get all wrapped up in the lack of factory wiring when a spool of speaker wire is cheap and takes all of the 20+ year old wiring issues out of the picture. You have to remove the B pillar plastic. the cover does not come off. Link to comment Share on other sites More sharing options...
Zebvance Posted March 16, 2015 Share Posted March 16, 2015 I just replaced my rear speakers. 1988 pioneer. Everything was stock factory even speakers. I just ordered some 4 inch speakers for the dash. Ill make them work if there is not any wiring. Link to comment Share on other sites More sharing options...
johnj92131 Posted March 16, 2015 Share Posted March 16, 2015 That makes a whole lot of sense. Just pull new wires and be done with it. Get new door speakers with tweeters, plug in to the original door speaker harness, run wires from door to rear speakers. Call it done. No cutting, no hacking. May as well order the new speakers from Crutchfield and be done with it. Now to check and see if any of my spare radios still work! If not, then tack the new radio on to the Crutchfield order. Link to comment Share on other sites More sharing options...
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