how do i wire the front dash speakers and door speakers together i want to run it straight to the deck but there is only two wires but i want to run two speakers.

 

well the thing about that is... you have to make sure that the radio will handle the OHMS that you are putting into the radio...

most radios will handle a 4 to 8 ohm load safe, so you have to do some math..

you need to know how many ohms the speakers in the doors are as well as the dash...

there are two ways to hook them up
series and parallel
if you run them in series then you will increase the load ie..
2 ohm door + 2 ohm dash = 4 ohm load to radio.. should be okay..
parallel will be the reciprocated sum of the recipricals... yea you can google that lol
but a 2 ohm door + 2 ohm dash = 1 ohm load to radio.. now this is NOT 2/2 its a formula.. search for it..

once you figure that your load is stable (if you hook it up wrong you WILL eventually blow the amp in the radio) all you have to do is run new wires and hook it up..

 

^ this is what he's talking about except in visual form. Just figure out how much of a load your headunit can handle to pick the right one.