Hey guys I have seen there is ways to add a sub to factory radio but let me know if this would work. I'm wanting to add a sub a small 10" and a pair of 6X9s for some added audio. So can I add a 4 channel amp have two set for the 6X9s and bridge the Sub? Going to get a box made to hold 10" sub and both 6X9s I see there is adapters for amps to factory radio but I've read its for subs only Thanks.

 

with a 5 channel you can but i do not believe a 4 channel

 

Yes you can bridge the sub to the two unused channels just get the ohms right. I'm worried as to will it pick up the right frequencies for regular audio speakers the 6X9's?

 

well you can do that. If the amp has two inputs you should be fine. Use one for front and one for sub. Adjust the settings with the crossover

 

Not all 4 channel amps are 3 channel compatible.