# How to retain top screen functionality after installing aftermarket head unit

**URL:** <https://community.cartalk.com/t/how-to-retain-top-screen-functionality-after-installing-aftermarket-head-unit/90087>\
**Category:** General Discussion\
**Created:** [May 26, 2015, 9:33am UTC](https://community.cartalk.com/t/how-to-retain-top-screen-functionality-after-installing-aftermarket-head-unit/90087 "2015-05-26T09:33:01Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SpacerDude](https://avatars.discourse-cdn.com/v4/letter/s/f19dbf/32.png) [@SpacerDude](https://community.cartalk.com/u/SpacerDude)\
**Post date:** [May 26, 2015, 9:33am UTC](https://community.cartalk.com/t/how-to-retain-top-screen-functionality-after-installing-aftermarket-head-unit/90087/1 "2015-05-26T09:33:01Z")

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So I have a 2014 Honda Accord and I’ve found myself doing hobbies on the car lately. My last endeavor didn’t turn out as expected. I installed a Kenwood double din head unit (no nav) and to my surprise I found myself losing all functionality to my original stock screen. The stock monitor basically showed my current MPG etc/plus music.

My main Q is there a way to have the top monitor track the MPG as usual while the aftermarket handles all my music entertainment?

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**Author:** ![SpacerDude](https://avatars.discourse-cdn.com/v4/letter/s/f19dbf/32.png) [@SpacerDude](https://community.cartalk.com/u/SpacerDude)\
**Post date:** [May 26, 2015, 9:38am UTC](https://community.cartalk.com/t/how-to-retain-top-screen-functionality-after-installing-aftermarket-head-unit/90087/2 "2015-05-26T09:38:44Z")

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here are photos. In one of the pictures you can tell the top screen is ON but doing nada. Any ideas?

[https://mail.google.com/mail/u/0/?ui=2&ik=733f3db8a4&view=fimg&th=14d8ea8a76c9838f&attid=0.1&disp=inline&realattid=1502208346302709760-local0&safe=1&attbid=ANGjdJ9iSxBGwplXBThBX5eyG5ZOPpL9jSFsX7SmuxK7b4x1eXs0oSceksYBbc041E2U-1xsusyxRQmXhRwzDt6D12vBqTOpcKF5ufD\_4WL\_jzxlfPODKj3F7VpTyWs&ats=1432618446877&rm=14d8ea8a76c9838f&zw&sz=w1345-h490](https://mail.google.com/mail/u/0/?ui=2&ik=733f3db8a4&view=fimg&th=14d8ea8a76c9838f&attid=0.1&disp=inline&realattid=1502208346302709760-local0&safe=1&attbid=ANGjdJ9iSxBGwplXBThBX5eyG5ZOPpL9jSFsX7SmuxK7b4x1eXs0oSceksYBbc041E2U-1xsusyxRQmXhRwzDt6D12vBqTOpcKF5ufD_4WL_jzxlfPODKj3F7VpTyWs&ats=1432618446877&rm=14d8ea8a76c9838f&zw&sz=w1345-h490)

[https://mail.google.com/mail/u/0/?ui=2&ik=733f3db8a4&view=fimg&th=14d8ea8106302a6c&attid=0.1&disp=inline&realattid=1502208291960258560-local0&safe=1&attbid=ANGjdJ\_vDTcHnhfhUY2JpTbditJEKX1zCJ99MXQeibMuD5Q3TFXJA9M8bVmzUXZPgIxlQ1cQwhgcepO9nVKU75r5jEJopCWBQhLoJySsiPJlIZbqGGBsurIEkRwvx6c&ats=1432617717903&rm=14d8ea8106302a6c&zw&sz=w1345-h490](https://mail.google.com/mail/u/0/?ui=2&ik=733f3db8a4&view=fimg&th=14d8ea8106302a6c&attid=0.1&disp=inline&realattid=1502208291960258560-local0&safe=1&attbid=ANGjdJ_vDTcHnhfhUY2JpTbditJEKX1zCJ99MXQeibMuD5Q3TFXJA9M8bVmzUXZPgIxlQ1cQwhgcepO9nVKU75r5jEJopCWBQhLoJySsiPJlIZbqGGBsurIEkRwvx6c&ats=1432617717903&rm=14d8ea8106302a6c&zw&sz=w1345-h490)

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<div class="post-metadata">

**Author:** ![galant](https://avatars.discourse-cdn.com/v4/letter/g/77aa72/32.png) [@galant](https://community.cartalk.com/u/galant)\
**Post date:** [May 26, 2015, 10:01am UTC](https://community.cartalk.com/t/how-to-retain-top-screen-functionality-after-installing-aftermarket-head-unit/90087/3 "2015-05-26T10:01:21Z")

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On my Mazda there was an added interface made by PAC (RP-MZ11) that fixed this problem. Go to Crutchfield’s site and put your make and model and see if you wanted to buy a similar unit, what accessories you need.