My uconnect in my 2008 Jeep wrangler have the time works sometimes it won't come on or you can use the touch screen to change radio stations. Help????

I cant understand your post. "have time" and (it wont come on) and
or you can use touch, << did you mean Can't ?)
tell that which works and does not. (
media center 730n? this failing
with Navigation?

get it serviced,?
this is what we call the magic features, Uconnect.
(window dressing bad?)
DIY ? what are you asking?
Help to do WHAT.?

or check fuses.
is car battery charged to 12.6vdc rested???? or at below 11v.?
does car run and drive? perfectly,

in the shop, they checks fuse, and battery voltage.
then they scan the PCM for errors, if they have errors the fix
that first. like bad comms to u connect/nav, radio , ,etc.
then work up to the actual head. finally replacing it.

these are fancy , complex to the max , high end options.
and when they bust are expensive to fix. '

my guess is you have this system.?
AM/FM (1-CD/DVD/MP3), full map navigation (6.5" integrated touch screen display), 1-disc data drive,
integral satellite & input jacks (RER)

"These radio receivers can only be serviced by an authorized radio repair station. See the latest Warranty Policies
for a current listing of authorized radio repair stations"
this means very special tools are needed to fix the unit
and access to special software updates in the unit.
go to the dealer an get just that.