Hey guys. I'm trying to hook up an aftermarket amp and subs in my S4. But, don't want to get rid of the stock head unit yet. Anyone know if I'll have any problems hooking it up through a line level conv.? Any help would be great. Thanks
Previously i had VW Golf and I didn't want to change my stock stereo either, so I used Hi-Low switch which connects to the speaker wires. It is best to connect to the rear speaker wires on the back of your stock stereo because you lose a little of volume, but you won't see a big difference 'cause of the sub in the trunk. It will sound not bad at all. The only thing you might wanted to use is a Bass level remote control for your amplifier because stock stereos cannot control bass frequencies. Some of the amplifiers already have this remote. It mounts on your dashboard or anywhere else and connects to the amplifier with LAN cable. So you will have bass control right in front of you. For exaple; I used Rockford Fostage PUNCH Amplifier (which already come with the Bass remote), and PUNCH P3 Sub-woofer. It is almost 2 years I'm using it and I am satisfied with the quality.
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