Is it worth it?

Originally Posted by bigaudiofanat

For the polk db's you will not need spacers. However you will need to cut the old tweeter out of its bracket and use that bracket for the new ones.

I would wait and do everything at once. You will want to run new speaker wires to the crossovers of the polks and you will want to run new speaker wire to the tweeters and woofers.

I am not a pioneer fan when it comes to head units simply because of the pico fuse and other things I have encountered. Some say they have never had a problem I for one have had problems ranging from wining noise form the pico fuse to screens failing to cd's stop ejecting.

I would look at kenwood of if you want something very quick and has a great interface check out the 910 from alpine that is what I am going with.