use factory speaker wire or run new wire?

I would like to know your opinion if using the factory speaker wire is acceptable or should I require new wires to be run? I'm installing top of the line JL Audio equipment in a 2009 Ram. Installer said up to me but factory wire should be fine. I would just like to make an educated decision. HD Amps Two - 10w6v2 subs ZR 650 components front/rear doors. Cleansweep keeping factory HU with Nav and uConnect.

It really is up to you... The GAUGE of the factory wire is perfectly adequate to transfer ANY amount of power you may be installing, however, that being said, using factory wire can be considered a "shortcut", and if he's using that one, what others might he be using? Nobody has EVER proven, even in multi-million dollar home systems, that spending huge money on cables can make a difference in the sound of a system, so with all of these notes in your mind, it really IS up to you. Me? Personally? With all of the gear you are adding, I'd add to the "bling", and put some high-end cables in there, with the FULL KNOWLEDGE that it IS just bling! Same reason I have two 1F caps in my system... They do nothing, but I like the "oohs" and "ahhhs" that people give 'em! It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

I agree with haemphyst its a bling factor. I've only had problems once on a 04 chevy w/bose. The wires leaving the stock amp did not match the wire colors at the rear doors. My question is if the amp is going to me mounted under seat or back of cab your going run new wire up to behind new deck to intercept stock speaker wires any way. You might as well just run them to the doors ( your half way there) the only reason the installler probaly asked is he might be using. "Speed cable". I love to use speed cable. It saves a lot of time. But as a part weekend installer its what the customer wants (and what there willing to pay) Go BIG or go Home                                    it might not be broke, but lets fix it anyway

Thanks for the replies! The amps will be mounted under the rear seats with the subs. They are custom fiber glassing a sub enclosure and will mount the amps between them. Custom install, should look real nice. They will have to run wires from the amp to the crossovers then from the crossovers I bet they will look for the speaker wire under the dash before it goes through the door molex. Otherwise they would have to drill out the molex. This is my guess.

Where are you planning to mount the crossovers?  Are there separates in the door already?

Installer said he was going to hide the crossovers. I asked if they could be displayed back with the amps but he said there would be no room. The truck has nine speakers plus sub. Really it's two sets of component with the front doors housing the mids and the dash has the tweeters. The dash also an extra tweeter (center channel). The rear doors house the mids and the two tweeters are mounted in the ceiling for the flip down monitor. They advertise it as a nine speaker system plus sub. That would like me saying the JL Audio 650 ZR's I'm buying for the front and rears are an eight speaker system. I would like to show off the crossovers when I flip up the seat, well see. The fiberglass box will be painted to match the truck.

He is the customer.   The reason I asked about the location, and the amount of speakers was to find out if there were enough wires going into the door. 

First of all... STOP HIM!!!! All of those tweeters, from your descriptions, are ALL going to be WAY too far from the mids... THEY NEED TO BE CLOSER TOGETHER!!! Can you say "suckout"? Also, passive crossovers should be as close to the drivers as possible... ALWAYS! ...so, the crossovers in the amp rack, IMO, was a bad idea anyway. A TWEETER for a center channel? Wrong answer there, too! Center channel information is as full-range as he doors! That system is going to sound like crap...It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

sweet work ckeeler, how'd the system bump.commit your way to jehovah and he will act in your behalf. psalms 37:5