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99 Grand Prix questions. Speaker replacement and general mods.

bartendme

New member
Hi folks,

In 1999 I walked into a dealership in Memphis, Tn and drove away several hours later in my brand new GTP with 43 miles on it. The window sticker is still in the glove box. Oh how the years pass. In 2012, I bought a Nissan Z Convertible and began to drive that on a steady basis. My old Grand Prix collected dust in the drive way for two years. Finally, as I was moving, I cranked her up and she didnt start. Surprise surprise huh? Replaced battery, fired on second crank. I love this car. She'll never be sold. As of right now, she has 130k miles on her, and im the only owner. Recently, after another move, a lady broadsides me in the Z, totaling it. Well, I took 5k of the settlement and dropped into the GTP. To the meat of this post.

I have had everything the mechanic could find wrong fixed. I also ordered 3800 Performance Stage 2 package, as well as new plugs and performance wires, as well as some other goodies. In addition, I have ordered all new Rockford Fosgate Punch speakers. All eight speakers of the Bose system will be replaced. My question is, in my twenties I modified my Taurus SHO quite a bit, including aftermarket speakers, head unit, amp, etc. I'm sure a few things have changed since then. I plan to do the install myself. I understand the front speakers, Tweeters and 5 1/4" mids in door, are run by the head unit (stock). The amp pushes the 4" and 6x9's in the rear. Maybe, at some point, I may drop a box in there but for right now, this will work great. Will I run into issues with the install? Is it a simple matter of removing what needs to be removed, replacing the speakers, plugging back in the speaker wires to the new speakers and done? Or will I need additional equipment such as crossovers, etc. I want to keep the original head unit for now, as it works with the HUD that I love so much.

Also, soon, I will be doing some exhaust work, possibly rocker arms, etc. From what 3800 performance states, I now have around an additional 50hp. I want to see 300+, which I am close. At what point in modding performance do you have to being to worry about the transmission handling it? I want to have some fun with my old girl. Soon she'll get a new paint job and wheels. But for now, this will work. Any and all advice is welcome. Thanks!
 


http://www.grandprixforums.net/threads/17482-Safely-Modding-Your-3800-Powered-Car!!

http://www.grandprixforums.net/forums/41-Audio-Security-amp-Visual-Electronics

Read through the modding thread for ideas to make it faster w/o blowing it up, and check out the audio section in the second link as there are tons of ideas for new speaker setups.

As far as the trans, it's the weak link even in a stock powered car. Triple Edge Performance is a good place to get a good built trans. You could install a Trans-Go shift kit in it to keep it alive awhile longer for now as long as you don't beat on it too hard.
 
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