I found a used edge comp box for my 99 24 valve for really cheap but it doesn't have the wiring harness has anyone made their own or know how to?

Edge should be able to sell you one.

I didn't see anything for it on their website I did find one from another company but it was over 200 dollars witch I don't think is worth it

Give them a call next week and maybe they can help you out.

Ok.thanks for the help

Yep. Give them a call. They are really great when it comes to customer service. Make sure they send the right harness for your truck though. I think there was a difference in MAP sensor plugs over the years.