I currently have 5 1/4's in the doors and 6x9's in the cargo area. I want to buy some 4" to put in the stock dash mounts. Just wondering if anyone knew what probs I could have by wiring 3 pairs of speakers to a cd player that has wiring for 2 pairs? I was thinking of splicing off the fronts to also run the 4"ers. Being that they are only 4", it shouldn't have much draw at all. I don't want to have to get an amp. Any thoughts?

 

I am sure you could spice the fronts, shouldnt be an issue. Although wiring it properly with an amp is a better idea.

 

Thanks, I just did some googling and the consensus is to NOT do it. Most head units I guess cannot handle that extra stress, and even though I was only going to use 4", it could be enough to fry the puny amp in the head unit. So.... I am either going to move up to 6.5" in the doors, or find a tiny amp to power the 6x9's and get some 4" and run those off the extra set from the HU. It's more work/$ than what I wanted to do, but it also seems such a waste to have those empty holes in the dash w/the nice factory grilles. The PO did really bad in cutting into the doors. I would've preferred to get the highest quality 4" for the dash, then some nice 6.5" for the cargo area.

 

Yea, its a matter of Ohm issues. Most car speakers drawl 4 Ohms and most head units are 4 Ohms per channel. When you wire two 4 Ohm speakers together in parallel (splicing) It cuts the Ohms to 2 Ohms. This can damage HU's and speakers. Make sense?

The best way, as you said, is to add a small amp or get a new HU that goes down to 2 Ohms per channel.

 

or get some 8 ohm speakers good luck finding those in car sizes, but it's still a valid suggestion.

 

Haha...yeah I know!! Probably pretty expensive! I think finding 8 ohm door speakers is as hard as finding a bridgeable HU. Nah, I think I'm just gona go with 6.5's in the front... or some really nice 5.25's. I don't want to add another amp because I already have 1 for a lil sub box I got. Thanks guys.

 

LOL! I once had this dream of cheap 8ohm 15's and a 0.5ohm stable amp. Aaaaahhhh the memories.

 

Not trying to hijack, but I was thinking of putting some tweeters in the stock rear area above the tailgate for a little bit more treble when hanging out at the back of the truck but I'm unsure of how to wire them in. Any suggestions?

 

Umm dont bother with 4's in the dash, unless you are doing a 3-way set up (and youre not) it will only kill the sound. theyre only good above 100hz so theyre really not useful. Just fix up teh 6.5's. No point having more than 4 speakers in a car anyways ( i consider components "1" speaker)
Oh, and 8 ohms are easy to find, you just have to know where to look.

 

they do make amps that are stable down to .5-ohms, but they're strictly of spl-competition type, and alao cost a whole lot...

 

a friend of mine wired 8 speakers to a standard aiwa head unit once. after about a week the head unit blew, so he put a new one in, and a few hours later the speakers blew. i wouldnt reccomend going more than 4 speakers.

 

Yeah i have two orion hcca's that are .5 ohm stable... but i dont agree on the competition only i can run them daily...