Installed Aftermarket Headunit With Mach460 - Volume Is Now Very Low..

[paradigm]

I installed an Alpine IDA-X001 headunit with the Metra 70-5510 into my 2000 GT with the stock Mach460 amps/speakers.

The volume has decreased significantly compared to the OEM mach460 headunit. I suspect there is a voltage issue (the Alpine headunit uses 2v preouts).

Has anyone had this issue? Anything I should look at fixing? I wired everything correctly, however I did ground the headunit through the harness and not directly to any metal besides it.

 

[paintballpyro1]

I had the same issue when i replaced just the HU, ending up having to buy a 4 channel amp,speakers(factory use 3ohms), and just re wired the whole system.

 

[twogts4us]

Did you hook up the amps? You should have 2 wiring harnesses...
Look up my recent posts regarding my new Pioneer.

 

[bhuff30]

That Mach 460 system seems to use a unique input level in that the line level input is too 'loud' and the pre-amp input is too soft.
Use the line level input instead of a pre-amp input that you are using now. You will likely want to use a reducer to get the volume level down to a reasonable level, or you won't have very refined volume level control. You should be able to buy a reducer from any reputable auto sound store (likely out of luck at best buy or equal).

Having said that, I said screw it all and run an alpine head unit to alpine amps with boston acoustic speakers and monster wire connecting everything together. A single 10" alpine sub round out the system nicely.