don't understang this new stuff help

Topic: don't understang this new stuff help (Read 1827 times) previous topic - next topic

don't understang this new stuff help

April 06, 2005, 01:26:37 PM

sharing the car with my son, interesting problems.

radio upgrade, for xmas got the boy some stereo stuff to put in the bird.
am/fm cd head unit with pull off face. got the wire harness to connect to my original harness. added 2 speakers to the door panels.
ran an extra set of rca wires to the trunk.
heres the deal.
connected all the wires to the harness. now have six speakers working. 4 4 " on the front circut 2 6 X 9 on the back works well. ran the two wires with rca jacks from the head unit to the trunk and added an amp with a kicker box (6 speakers) and a bass tube.
the amp powers up but no sound from the kickers or bass. made a quick jumper from the rear speakers (working) both the kicker and bass play (low volume). then for giggles jumped to the amp with the standard speakers ( ah ha) now the amp drives the kicker and bass for about 45 seconds then cuts out. if i run the amp through the rca plugs do i need to not run standard speaker wires? Can you mix and match with powered (standard) speakers and the RCA preouts from the head unit or is it all one or all the other? is the head unit defective? is there a way to put a resistor in the wires so i won't over drive the amp? should i get a multichannel amp and run all the speakers off the amp? when i put a similar set up in my daughters car (chevy) the front speakers run directly from the head unit but the rears and bass run off the amp,

Re: don't understang this new stuff help

Reply #1 – April 06, 2005, 03:07:42 PM

are tge rca's new? if not replace em. then check for a good ground also check the remote wire that turns on the anp when the head unit is on. just doble check everything. you should have 3 wires goin to the truni rca's power and remote. then ground it to the chassie if it still doesn't work then check the amp or subs cuz they both could be bad

Re: don't understang this new stuff help

Reply #2 – April 06, 2005, 04:04:17 PM

The very first thing to check is the radio's settings. Somewhere on that head unit is a menu that allows you to change settings (use your manual to finid it), and one of those settings may be to enable or disable the pre-outs.

Your amp should be only connnected with the RCA wires, not with the line level (speaker outputs) of the receiver. You can run speakers directly from the receiver's speaker outputs, but you can't run the amp from the speaker outputs. Well, you can, with some amps (some have a line level input and gain control), but it's not recommended.

Also, if your amp does not have a built-in crossover you should add one if you're powering a sub. Your head unit might have one as well (get out the manual)

Re: don't understang this new stuff help

Reply #3 – April 08, 2005, 12:07:40 PM

yes the RCA wires are new bought 20 ft monster wire (brand name) red/white twin leads ran them under the sill plate and rear seat when i was overahuling the car in dec so as to be ready for the Xmas gift for the kid. amp owers up when radio comes on. I'll pull the radio out this weekend and run another set of wire to see if maybe the other are bad/pinched. Will also check the om for the radio to see if the preouts can be turned off/on
thanks
baylensman
87 LX

Re: don't understang this new stuff help

Reply #4 – April 08, 2005, 06:26:50 PM

:flame: i would check the power connections. Me and my freind put 2 12's in his car and when we were done it didnt work. Had no Idea why. after he got home his altenator took a dump on him. He got a enw one and then it worked