Phoenix Gold Phorum

Hi I'm looking for suggestions on wiring up my components. I have a JVC KD X80BT head unit 20w RMSx4ch ,4 Polk Audio dbi691 100w rms@300w max, Phoenix Gold TI2 1000.4 amp. I have been running this in my overhead console in my RZR for a couple years wired simply 1 speaker per channel and it is loud and clear but now I want to add a 12"Alpine sub SWS 12d2 in a separate custom enclosure. I know enough to get me by most of the time but want to get it right the first time. I have very limited space so don't want to add another amp. heres what I'm thinking . Starting at the pre outs on the head unit run a y rca connector to combine the left speakers and another y rca to combine the rights. Plug the 2 rca's into the front channels1&2 of the amp. Run rca from the sub preout on the head unit to channels 3&4 . Wire the speakers parallel to front 1&2. Bridge channel 3&4 to the sub wiring the dvc coils to 4 ohm. RMS power output of the amp is 150w x 4 @ 4 ohms Stereo 250w x 4 @ 2 ohms Stereo 500w x 2 @ 4 ohms Bridged. So assuming I have this figured out correctly (or am I off somewhere) I am assuming 250w per channel for the front two channels? 500 w for the sub channel? Will this work? Since the 6x9's are rated at 100w looks like I will be overpowering the 6x9's or will I be ok by just reducing the gain? The Alpine sub is rated to 500w so should be ok there? Suggestions and advice appreciated.

Do NOT use "Y" cables. From your headunit, run a set of RCA's from the front outputs of the headunit to channels 1 & 2 of the amp. Run another set of RCA's from the subwoofer outputs of the headunit to channels 3 & 4 of your amp. Leave the rear outputs from your headunit disconnected. Connect the speakers like you have described, your assumptions are correct. You will probably have to keep the gains turned down on channels 1 & 2 so your subwoofer will blend better.