Mach 460 problems help!!

[Jacob_Royer]

Got in my car tonight and turned the radio on... It came on and everything works on the radio/cd player BUT i have no sound whatsoever!! what the crap?? any ideas?? what to look for?? this is so anoying!

 

[rabidscoobie]

I dunno,maybe the internal amp or whatever that thing is called.Its the output part internally that im talking about just a guess.When I got my 01 I had to have my mach system changed twice,once with your prob,2nd time cd player crapped out,and in Jan the cd went again plus the volume knob went haywire,turn vol down but it would go up.I just replaced with a nice Kenwood with the cable adapter so that I could still use the Mach amps and all the speakers...sounds a whole better now.Sorry couldnt be more help,but thats my experience.Dont get me wrong I liked the Mach unit but it just wouldnt stay working.

 

[blckstng96]

amps prob took a ****

 

[Jacob_Royer]

amps prob took a ****

So if i replace the head unit with an aftermarket i still wont have sound??

 

[rabidscoobie]

I dont think thats true,if he is meaning the 2 external amps in the trunk.Its like this....you ever turn your key on and hear the radio come on but it sounds low volume and then about 2 secs later the sound really kicks in,well thats because the power to the amps havnt come on yet.What im trying to say is,if both of the amps in trunk died you will still have sound it will just be alot lower volume.I think it could be the internal amp in the head unit or if you lucky maybe the speaker harness that connects to the back of the unit has come loose.Possible could be a fuse if you havnt checked them yet.If you were to get a new head unit and for some strange reason both amps were bad you still be able to get sound alll be it wont be as loud,but I really dont think thats the problem.

 

[Jinx]

Just a thought....

Do the front speakers on a 460 run through the rear amps? I don't think they do, but they might. If you are getting 0 sound out of any speaker, I would be suspicious of the head unit. If you get sound out of the front, but not the rear, then I would suspect the 460 amps took a dump.

 

[n0v8or]

On my '03 Mach 460 head unit, there is a"mute" button on the right side with a telephone icon. I hit it by accident while cleaning the interior and the result was no sound. So you might check that button if yours has one.

 

[rabidscoobie]

Yes the front speaker do,in fact all speakers run through the amps,the head unit has built in crossovers or high pass,low loss pass filters built in.The Kenwood unit I bought has them built in also and the sound is great when combined with the mach amps and speakers.

I was just thinking I might be wrong.I think the head unit might have a built in 3rd amp for the small speakers,either way I dont think the external amps are the problem.

 

[rabidscoobie]

On my '03 Mach 460 head unit, there is a"mute" button on the right side with a telephone icon. I hit it by accident while cleaning the interior and the result was no sound. So you might check that button if yours has one.

LOL true,I forgot about that button.