I installed a D1 unit in my 2005 altima with the bose sound system using the amp integration kit, and am getting a ridiculous a mouth of engine noise, when the car is just on "accessory" its fine, when the engine is running and im not moving its fine, but when the car is moving i get the noise, the weird thing is its basically only when im moving and if i put the car in neutral and rev the engine theres no noise. im gonna take it apart tomorrow to check the wiring, but what else can it be??

Make sure you have a good ground. With the Altima there's no ground in the factory harness. You need to take the black ground wire directly from the harness of the D1 and ground it. I have the same model year car and I have found that this cures most engine noise.

i did group the one long black wire thats on the D1 harness and theres another wire thats part of the amp intergration kit which has black wires on it that i did not ground, could that be the problem?

Could be. If you want to try something screwy, worked for one of my old headunits, take a 2 inch piece of speaker wire. Strip half and wrap around one of the RCAs for the sub or speaker. You may just have a bad ground somewhere, but this little trick works.