i got an alpine IVA-W205 i used the metra harness and it seems like when i hook the HU red wire with the metra red wire then the yellow with the yellow it doesnt turn on but then when i hook them all together it turns on. so i thought it was fine, but then after i turn the car off and then back on the HU is reseted, plus i cant get no video picture but can hear my DVD's if anyone could help me please pm or reply. i thought they say the metra harness was a plug and play. i own a 2005 IS300