i have the 2007 4 door sedan Mazda 3, and i want to install my sub woofers i took out of my previous car into this while still using the stock radio. from what i have read i need a line output converter. so i ordered me of those that will be here soon.

my question is what is the best way to hook up my amplifier such as were to route the wires, and which wires should i tap into to get the correct wires to the Lin output converter? i want to use the STOCK radio

i will be using 2 12 inch lanzar sub woofers being pushed by a Pyle acoustics d class amp 1900watt

 

I wired mine in my 06 mazda 3 hatch and all i did was patch into my rear speakers left and right using the converter. I just pulled out the factor stereo spliced into the speakers then put the wires thru the dash into the glove box thru the access toward the back of the glove box. thats where i made the connections for the converter and then ran the rca plugs and remote wire under the trim by the door on the right side of the car. toughest part is splicing in the little space behind the deck....

 

are your rear speakers still connected? and what would you reccommend as a good loc?