Blowing Through Turn Signal Bulbs

So curious if anyone can point me in the right direction to troubleshoot why I am all of a sudden blowing through turn signal bulbs.
I just replaced my front passenger side DTRL Turn signal 2 days ago which is the first time replacing any bulb since I purchased truck new in 2013.
The same bulb just went out again today which strikes me as a little odd. I had replaced the OEM Sylvania bulbs with a pair from Napa (Napa Branded).
No recent modifications to anything electrical other than adding a stereo amp and speakers a few weeks ago.

Thanks for any help.

 

Well. One new bulb going out doesn’t qualify has blowing bulbs. Replace and see if it happens again. Could have just been a crappy bulb it happens. Now if you go thru 3-4 in the next week there’s an issue.

 

Thanks for your input. I dont see it as normal to have the same bulb socket blow another in such a short interval of replament.

 

Take a voltage reading (at the offending socket).

 

....when you do things that make you question yourself..lol.
Turns out it was not indexed entirely into the socket and worked itself loose.
Problem fixed.
Thanks again for the input guys.