Audio Systems: install of a dzp905 in a 98 camry, wiring harnesses, orange 4

Question
I'VE FOUND THE HOT(CONSTANT) THE IGNITION, %26 THE DIMMER WIRES.FROM THE CAMRY THE COLOURS ARE:HOT BLKw/2 GRY BANDS
IGNT:WHTw/2GRY BANDS  DIMMER:GRNw/2GRY BANDS %26 EARTH{grnd}:WHTw/GRN STRIPE AND 2 GRY BANDS.
I HAVE WIRED THE NEW SYS. TO THESE AS FOLLOWS:
1:HOT TO YELLOW
2:IGNT. TO RED
3:DIMMER TO ORANGE
4:PINK REVERES TO A REDw/GRY BAND?
NOW WHEN I TRY TO ID. AND CONNECT THE SPEAKERS ALL I GET IS A LOUD TONE(VERY LOUD),SO MY ? IS AM I WIRING IT UP CORRECT SO FAR?
AND HOW DO I FINISH? IS THERE AN AMP BUILT INTO THE CAR AS IS? AND IF SO DO I NEED TO BYPASS IT OR USE IT? AND IF USE IT HOW?

Answer
Try page 7 of this web site:

http://www.installdr.com/InstallDocs/Toyota/PDF/869037.pdf

or other color coding you can find with a google. This is quite different from your list.

Then, from your owners install manual on the dzp905 find the matching functionals.  You can either wire direct or best if you use a wiring harness.  You can find wiring harnesses for the Camry at Walmart, Crutchfield.com , installer.com among others.  Harnesses typically cost $9 to $15 and are well worth using to ease the installation.

Hope this helps get the wiring straightened out!