Actually, it's 150x2 and 75x2, but yes, I think you should change out the speaker wires. I have the exact same amp, but I put the 150x2 to the front mid-bass and the 75x2 to the front tweeters. I ran dual 12 gauge wire to the front doors.

I can't really offer you any instructions, since I didn't really document the process, but if you have any questions, feel free to PM me, and I will attempt to get back to you ASAP.

 

I did it:

There is a small unused gromet that can be poped out (located under the stock wiring harness in the door jamb)



Next step, I ran a wire hanger through the opening and into the car footwell.





Then I proceeded to pull the wire through and cut a hole in the stock rubber gromet in the door. I pulled the wire all the way out the other gromet in the door



All Done....

 

I like your way.

 

Very nice. Great pics!

Just remember to seal up any holes you cut.

 

I showed that step in my thread on how to run the wire for the amp