My Acura MDX 2004 Touring navigation screen is no longer responding to touch, and as such the A/C Controls no longer work. The A/C comes up in full always consuming so much fuel. Someone on net suggested I should disconnect the battery heads and touch together for 15 mins and reconnect back. I tried and it worked for two days, then returned to the status quo. Is there any expert on this who can proffer a lasting solution please? Help!