Hi all ICE gurus..

i'm driving satria, my ICE setup something like this:

1. Pioneer 5750 HU
2. front component speaker (dont remember what brand)
3. JBL Concorde sub woofer
4. a/d/s 860MX 8 channel amplifier

My problem here, my speaker output instabilize sound.. sometimes, my car hit a pole, it will become instabilize also.. in order to stabilize it so it can produce normal sound, i need to increase the volume.. are there anything that i can check or do first, before i bring my car to shop?

thank you everyone

is that mean, there is possibility the cable is loose? about the window, i always play it with window up, to have better environment to listen to ice..