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I havent been into car audio really but recently my factory cd player is doing some screwy things. I want to change out the HU and get some decent speakers in them for a good price. I'm really not going for high quality here, just something decent and better than the stock stuff.

My friend works at the local wal-mart here and is able to get a good discount on the items they sell there and I was looking at what they carried.

Here's what I came up with:

Pioneer DEH-P4600MP
Pioneer TS-G950M 6 x 9 Speaker
Pioneer TS-G670M 6.5-inch Speaker

I know I know, decent stuff at best. But that's what I'm going for, value.

My question is not if these are good, but if they'll actually fit and how hard the installation is. I know what im doing under the hood of a car but haven't ever messed with audio installations and was wondering if I should do it myself or get a local shop to do it. Yes, I've searched the boards but I wasn't able to get a straight answer on if the back speakers were 6.5s or 6x9s.

Any advice would be appreciated, extra things I need to pick up for installation at a circuit city or similar store would also be greatly appreciated.

Thanks a bunch