Quick question, hoping to increase sound quality/quantity

Ok, I was wondering if it would be at all possible to install more than 4 speakers with the sony xplod deck that I have. I want to be able to run all the xplod speakers, as well as 2 or more stock speakers...Possible?

Here is what I have:

If you want to increase sound quatity, add a 4 channel amp. More speakers arent always better. But add an amp to the speakers you have, then updrade from coaxials to components over time. In my regulay cab mazda I am running a 4 channel amp in 3 channel mode, with once channel as my sub channel and the other 2 channels will run my component sets.

Ok, well the reason I was wanting to add in the other speakers is because I figure they would pick up high end better than what I have now, am I wrong?

if you want more high end....add a couple tweeters. not those cheap ass tweeters but a set of decent ones with a seperate crossover.

More speakers off the deck will actually start to decrease your sound quality. Remember that your deck only puts out about 12 watts RMS for each channel. so if you add more speakers you are running less power to each speaker, not to mention decks aren't meant to be bridged. Add a nice 4- channel amp and don't skimp on your cables and wires, you will be amazed at the difference. Switching to a set of components with separate tweets will be a huge upgrade also. Just my $.02

Get a nice component set. they come with a crossover so you'll get the sound quality your looking for.

Alright, thanks guys I am finally hopefully getting a job. Once I get that I will have more money to start messing with my B.