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Aug 2, 2018 | 02:21 PM

breezeyone

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Driver School Candidate

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From: Florida

navigation amplifier

What is the function of the navigation amplifier? Noticed mine getting hot

Aug 2, 2018 | 03:20 PM

Bgw70

Lexus Test Driver

Joined: Dec 2014

Posts: 8,213

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From: Fl

Quote:

Originally Posted by breezeyone

What is the function of the navigation amplifier? Noticed mine getting hot

what year?
SC430?

how do you know it is getting hot?

Aug 2, 2018 | 03:34 PM

mrblister

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Joined: Nov 2007

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From: Pa

Quote:

Originally Posted by Bgw70

what year?
SC430?

how do you know it is getting hot?

I thought the amplifier for the navigation is under the trunk panels on top of the nav unit . Not sure how you can tell its getting hot if it
is under the panels.

Aug 2, 2018 | 03:40 PM

Bgw70

Lexus Test Driver

Joined: Dec 2014

Posts: 8,213

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From: Fl

Quote:

Originally Posted by mrblister

I thought the amplifier for the navigation is under the trunk panels on top of the nav unit . Not sure how you can tell its getting hot if it
is under the panels.

agreed, that’s why I was wondering what the person was doing and what did this person consider hot.

Aug 3, 2018 | 03:08 AM

breezeyone

Thread Starter

Driver School Candidate

Joined: Aug 2018

Posts: 3

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From: Florida

nav. amp

it is a 2003. Was working on electric antenna and having nav. issues, ( System not updating) So out come the panels. It was not hot enough to burn you but, hot enough you did not leave your hand on it for more than about 15 seconds.

Aug 3, 2018 | 05:10 AM

mrblister

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Joined: Nov 2007

Posts: 2,625

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From: Pa

Quote:

Originally Posted by breezeyone

You should be able to replace from ebay figure around no more then 40.00 to 50.00

Aug 3, 2018 | 11:06 AM

Bgw70

Lexus Test Driver

Joined: Dec 2014

Posts: 8,213

Likes: 950

From: Fl

Quote:

Originally Posted by breezeyone

i would need to double check but I thought that small NAV box was for voice...but not sure. When I replaced the NAV unit in my 2002 from the gen2/3 to the Gen4, I didn’t connect that box up to anything and my NAV is just fine.

When you say update, do you mean driving down the road, it is not updating?
if that is the case, you may have an issue with the disk or the disk reader in the NAV unit or the unit itself.

navigation amplifier

navigation amplifier

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