what is the little antenna on the roof for? how do I get lexus link

Lexus Link has been discontinued. What year LS? There was a TSB to remove the Lexus Link buttons and replace with trim that has no buttons, as well as disconnect the Lexus Link communication unit in right side trunk.

See attached showing how to easily disconnect the Lexus Link unit in the lower trunk.

it is a 2005 model , then what is that little antenna for on the roof

The antenna is used for the telematics of the Lexus Link system. It is now discontinued, non-functional, and obsolete due to the change from analog cellphone signals to digital ones.

It's for the Lexus Link system, which was discontinued mid-model.

so basically that antenna is a waste up there and does nothing for me ? and I cannot get anything like the on star? also that little button on the steering wheel the phone is obsolete to ?

On star is a General Motors product/service. Check it out ...

The phone button? The phone button should work to answer your bluetooth-connected cell phone.

ok thank you , but lexus offers nothing as far as that antenna goes , correct

http://www.engadget.com/2011/01/04/o...y-handling-th/
you can put on star on any car now.

ok thanks everyone but that antenna is basically useless now and lexus offers nothing for it correct?

Question. Is it possible to use that anttina for the radio?

after researching a liitle bit am being told that antenna is for sat/xm radio

Whoever told you that is incorrect.