Well i spent 4 hours today tuning fsuerics vehicle , Why because i was tuning it with a recorded cd that was recorded with like the most awful eqed recordings i have ever heard . I knew better than to do this , Finally i found a good cd in my helpers vehicle and got it tuned in like 10 minutes. And it sounds awesome. Amazing. My other major gripe is the metra kit for the 06 dual air Titan . What a POS . I tried to different 40 dollar cost kits and both have a 1/16th gap at one spot that drove me crazy. took the dash off 8 times easy and replaced the clips with brand news from Nissan 3 times.. Finally i realized it is how the kit is made. Theres no way to get rid of the gap with these two kits. Called metra and they gave the best answer . People just get use to it if they want a double din aftermarket radio . SERENITY NOW.