Im having a hard time deciding which one to choose any recomendations?

I own an 04 celica gts

Do you feel like spending $1000 or $2000?

I have both. The Z1/2 has more features (that I don't use) and uses a hard drive to store maps. The D3 uses DVDs and has only one slot. I think the D3 looks better installed because of the fixed screen and light color options.

Do you feel like spending $1000 or $2000?

doesnt matter really. Just looking for opinions. What looks better, sounds better, stuff like that. Im not very knowledgeable in that area. haha. Im tricking out my car I've already done some of the outside. So now Im going for the inside.